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Ulaanbaatar to Tokyo in December 2026 UBN → HND, NRT

Chinggis Khaan International Airport (UBN) → Haneda Airport (HND), Narita International Airport (NRT)

For departures in December 2026, the cheapest return found recently is $503 with Air China, 3 Dec – 19 Dec, found today. The cheapest one-way found recently is $291 with Air China, 21 Dec, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 10 departure dates is usually $503 to $560. Across all 81 departure dates we hold on this route, it is usually $519 to $578. Of the 8 months with enough return fares to compare, 2 are usually cheaper than December 2026.

Cheapest return found recently

$503

3 Dec – 19 Dec · Air China

Chinggis Khaan International Airport (UBN) → Haneda Airport (HND)

out 1 stop, back 1 stop

found today

See prices for these datesCheck today's price

Cheapest we hold, of any age

$475

14 Dec – 17 Dec · MIAT Mongolian Airlines

Chinggis Khaan International Airport (UBN) → Narita International Airport (NRT)

out nonstop, back 1 stop

found 6 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
14 Dec – 17 Dec$475MIAT Mongolian Airlinesout nonstop, back 1 stopfound 6 days agoSee prices for these dates
8 Dec – 17 Dec$501MIAT Mongolian Airlinesout nonstop, back 1 stopfound 5 days agoSee prices for these dates
3 Dec – 19 Dec$503Air Chinaout 1 stop, back 1 stopfound todaySee prices for these dates
7 Dec – 17 Dec$503MIAT Mongolian Airlinesout nonstop, back 1 stopfound 6 days agoSee prices for these dates
15 Dec – 21 Dec$520Jeju Airout 1 stop, back 1 stopfound 6 days agoSee prices for these dates

Every date we hold

10 departure dates

3 Dec – 19 Dec: $503, found today7 Dec – 17 Dec: $503, found 6 days ago8 Dec – 17 Dec: $501, found 5 days ago11 Dec – 22 Dec: $553, found 5 days ago13 Dec – 22 Dec: $553, found 5 days ago14 Dec – 17 Dec: $475, found 6 days ago15 Dec – 21 Dec: $520, found 6 days ago24 Dec – 6 Jan 2027: $615, found 3 days ago25 Dec – 6 Jan 2027: $655, found 3 days ago29 Dec – 21 Jan 2027: $562, found 4 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 Dec – 19 Dec$503Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)out 1 stop, back 1 stopfound todaySee prices for these dates
7 Dec – 17 Dec$503MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out nonstop, back 1 stopfound 6 days agoSee prices for these dates
8 Dec – 17 Dec$501MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out nonstop, back 1 stopfound 5 days agoSee prices for these dates
11 Dec – 22 Dec$553Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)out 1 stop, back nonstopfound 5 days agoSee prices for these dates
13 Dec – 22 Dec$553Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)out 1 stop, back nonstopfound 5 days agoSee prices for these dates
14 Dec – 17 Dec$475MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out nonstop, back 1 stopfound 6 days agoSee prices for these dates
15 Dec – 21 Dec$520Jeju AirChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
24 Dec – 6 Jan 2027$615MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out 1 stop, back nonstopfound 3 days agoSee prices for these dates
25 Dec – 6 Jan 2027$655MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out 1 stop, back nonstopfound 3 days agoSee prices for these dates
29 Dec – 21 Jan 2027$562MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out 1 stop, back nonstopfound 4 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $475.

October 2026From $5954 departure dates27 Oct – 4 Nov · found 5 days agoSee prices for these dates
November 2026From $49122 departure dates29 Nov – 5 Dec · found 4 days agoSee prices for these datesEvery date in November 2026
December 2026From $475Cheapest seen10 departure dates14 Dec – 17 Dec · found 6 days agoSee prices for these dates
January 2027From $5039 departure dates30 Jan 2027 – 31 Jan 2027 · found 5 days agoSee prices for these datesEvery date in January 2027
February 2027From $50911 departure dates20 Feb 2027 – 8 Mar 2027 · found todaySee prices for these datesEvery date in February 2027
March 2027From $49114 departure dates15 Mar 2027 – 20 Mar 2027 · found yesterdaySee prices for these datesEvery date in March 2027
April 2027From $5446 departure dates24 Apr 2027 – 5 May 2027 · found yesterdaySee prices for these datesEvery date in April 2027
May 2027From $5203 departure dates10 May 2027 – 20 May 2027 · found 6 days agoSee prices for these datesEvery date in May 2027
July 2027From $6321 departure date8 Jul 2027 – 18 Jul 2027 · found 3 days agoSee prices for these dates
September 2027From $5821 departure date17 Sept 2027 – 25 Sept 2027 · found todaySee prices for these dates

One-way

We hold one-way fares on only 2 departure dates in December 2026, too few to say what one usually costs.

Cheapest one-way found recently

$291

21 Dec · Air China

Chinggis Khaan International Airport (UBN) → Haneda Airport (HND)

1 stop

found 2 days ago

Open this tripCheck today's price

It is also the cheapest one-way we hold, of any age.

FareTell may earn a commission when you book through a partner.

The cheapest dates in December 2026

DatesFromAirlineStopsFound
21 Dec$291Air China1 stopfound 2 days agoOpen this trip
12 Dec$297Air China1 stopfound 4 days agoOpen this trip

Every date we hold

2 departure dates

12 Dec: $297, found 4 days ago21 Dec: $291, found 2 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
12 Dec$297Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)1 stopfound 4 days agoOpen this trip
21 Dec$291Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)1 stopfound 2 days agoOpen this trip

Which month looks cheapest?

November 2026 is the cheapest month — from $230.

November 2026From $230Cheapest seen4 departure dates17 Nov · found 10 hours agoOpen this tripEvery date in November 2026
December 2026From $2912 departure dates21 Dec · found 2 days agoOpen this trip
January 2027From $2738 departure dates21 Jan 2027 · found 6 days agoOpen this tripEvery date in January 2027
February 2027From $2886 departure dates19 Feb 2027 · found yesterdayOpen this tripEvery date in February 2027
March 2027From $3041 departure date26 Mar 2027 · found 5 days agoOpen this tripEvery date in March 2027
April 2027From $2917 departure dates20 Apr 2027 · found 5 days agoOpen this tripEvery date in April 2027
May 2027From $2888 departure dates24 May 2027 · found 5 days agoOpen this tripEvery date in May 2027
August 2027From $2884 departure dates31 Aug 2027 · found 5 days agoOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work